Apr 18, 2013 4:00pm PDT
of calls coming in. we're told by pete williams that the fbi is receiving calls of suspected matchups with the faces here. >> they are getting some names and now what they are trying to do is run those names through data is bas and s databases and there is no name to match the suspects. but they are operating those lines. they have task force teams obviously ready to run out and follow any leads as they come in. some names are being offered from the calls and e-mails that are coming in but as of now there is no certain match and they are, again, using all their computers and technology to try to, as the names come in, to try to find them and find out which tips are more credible than the others. >> i'm wondering, jonathan, if you were in that crowd and survived and you're watching right now, does the human memory work that way that you would recognize these two guys walking along dressed as they were? >> i don't know. looking over the videotapes of that crowd, people were coming, going, celebratory, people watching the race, looking out on to the marathoners finishing up looking for t
Apr 16, 2013 12:00pm PDT
and the investigation into what happened. we begin with that. and nbc news justice correspondent pete williams. pete, what do officials know? what are they saying? >> well, consider this interesting fact. i just talked to a person who has done a lot of bomb investigations who says that under normal conditions, it is possible to gather up 93 to 98% of the bomb devices themselves. even though they will be in little pieces and will be all bent up. most of the bombs will not be consumed by the explosion. so they're optimistic that they will have within a fairly short time here, it may take a couple of days, a pretty good idea of exactly how these devices were made. and already they say they have a rough idea of what components were used to make the bombs. unfortunately, these are very common methods. there is nothing that really stands out. they say that the pieces were assembled in a pressure cooker. that there were ball bearings and bbs inside. some kind of gunpowder used as the explosive within a timer to set it off. and placed on the scene in some sort of black sacks. whether they're backpacks or no
Apr 15, 2013 1:00pm PDT
in from our own pete williams. we're working to confirm as many details, again, as possible. several officials say it appears two of these bombs went off near the finish line. again, this happening about two hours after the winners of the marathon. the explosion, itself, taking place right around the time the amateurs were starting to come through. finishing the race. let me take you back to the local coverage, hear more details of what they've been able to uncover. >> temperature of any situation by basically watching, absorbing how fast these police dar cars going. 15 minutes ago the police cars went screaming down the street. shortly after i arrived on the scene, one person said, i can't confirm it, he heard multiple devices have been found. i wanted to wait and so if we could find out more information. indeed, that is true. this area has been cleared out. i'm going to ask jeff, my colleague, to turn around. see more people are being cleared out. let's turn around and look here at st. james street, i should say. st. james street. more people are being cleared out. more emergency v
Apr 17, 2013 2:00pm PDT
, a federal -- a lot of other networks are doing this. luckily we have pete william here to guard the truth and make sure we get it right. but other networks without pointing to anybody, they have had the problem, federal officials, i'm looking through all the clips. maybe just one, maybe a very busy federal official has been running around today telling news people and major networks and wire services, hey, look, they made an arrest. how did that happen, clint? who is this person that says i know they did. hard fact. >> number one, yeah, it shouldn't have happened. we don't know who it was. but, look, when you get that many agencies involved, somebody's looking to make points. unfortunately, the points they make could compromise an investigation. but when you have upwards of 60 different agencies involved in a case like this, loose lips can sink a case. >> you think it's possible there has been someone as you say in pocket or what's the -- do you think this person has been narrowed down to? do they have the person in a case or they have them in some sort of contained circumstance they can'